311547780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 216

約数和(自身を含む): 1031881032

約数和(自身を除く): 720333252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 53, 60, 68, 85, 90, 102, 106, 113, 153, 159, 170, 180, 204, 212, 226, 255, 265, 289, 306, 318, 339, 340, 452, 477, 510, 530, 565, 578, 612, 636, 678, 765, 795, 867, 901, 954, 1017, 1020, 1060, 1130, 1156, 1356, 1445, 1530, 1590, 1695, 1734, 1802, 1908, 1921, 2034, 2260, 2385, 2601, 2703, 2890, 3060, 3180, 3390, 3468, 3604, 3842, 4068, 4335, 4505, 4770, 5085, 5202, 5406, 5763, 5780, 5989, 6780, 7684, 8109, 8670, 9010, 9540, 9605, 10170, 10404, 10812, 11526, 11978, 13005, 13515, 15317, 16218, 17289, 17340, 17967, 18020, 19210, 20340, 23052, 23956, 26010, 27030, 28815, 29945, 30634, 32436, 32657, 34578, 35934, 38420, 40545, 45951, 52020, 53901, 54060, 57630, 59890, 61268, 65314, 69156, 71868, 76585, 81090, 86445, 89835, 91902, 97971, 101813, 107802, 115260, 119780, 130628, 137853, 153170, 162180, 163285, 172890, 179670, 183804, 195942, 203626, 215604, 229755, 269505, 275706, 293913, 305439, 306340, 326570, 345780, 359340, 391884, 407252, 459510, 489855, 509065, 539010, 551412, 587826, 610878, 653140, 689265, 916317, 919020, 979710, 1018130, 1078020, 1175652, 1221756, 1378530, 1469565, 1527195, 1730821, 1832634, 1959420, 2036260, 2757060, 2939130, 3054390, 3461642, 3665268, 4581585, 5192463, 5878260, 6108780, 6923284, 8654105, 9163170, 10384926, 15577389, 17308210, 18326340, 20769852, 25962315, 31154778, 34616420, 51924630, 62309556, 77886945, 103849260, 155773890, 311547780]

約数ペア:

[(1, 311547780), (2, 155773890), (3, 103849260), (4, 77886945), (5, 62309556), (6, 51924630), (9, 34616420), (10, 31154778), (12, 25962315), (15, 20769852), (17, 18326340), (18, 17308210), (20, 15577389), (30, 10384926), (34, 9163170), (36, 8654105), (45, 6923284), (51, 6108780), (53, 5878260), (60, 5192463), (68, 4581585), (85, 3665268), (90, 3461642), (102, 3054390), (106, 2939130), (113, 2757060), (153, 2036260), (159, 1959420), (170, 1832634), (180, 1730821), (204, 1527195), (212, 1469565), (226, 1378530), (255, 1221756), (265, 1175652), (289, 1078020), (306, 1018130), (318, 979710), (339, 919020), (340, 916317), (452, 689265), (477, 653140), (510, 610878), (530, 587826), (565, 551412), (578, 539010), (612, 509065), (636, 489855), (678, 459510), (765, 407252), (795, 391884), (867, 359340), (901, 345780), (954, 326570), (1017, 306340), (1020, 305439), (1060, 293913), (1130, 275706), (1156, 269505), (1356, 229755), (1445, 215604), (1530, 203626), (1590, 195942), (1695, 183804), (1734, 179670), (1802, 172890), (1908, 163285), (1921, 162180), (2034, 153170), (2260, 137853), (2385, 130628), (2601, 119780), (2703, 115260), (2890, 107802), (3060, 101813), (3180, 97971), (3390, 91902), (3468, 89835), (3604, 86445), (3842, 81090), (4068, 76585), (4335, 71868), (4505, 69156), (4770, 65314), (5085, 61268), (5202, 59890), (5406, 57630), (5763, 54060), (5780, 53901), (5989, 52020), (6780, 45951), (7684, 40545), (8109, 38420), (8670, 35934), (9010, 34578), (9540, 32657), (9605, 32436), (10170, 30634), (10404, 29945), (10812, 28815), (11526, 27030), (11978, 26010), (13005, 23956), (13515, 23052), (15317, 20340), (16218, 19210), (17289, 18020), (17340, 17967)]